I have a Grundig GDT1000 freeview box. Despite a reset, it refuses to acknowlwedge that there is now a freeview mux on Ch27 at Sandy Heath. Is this because the box is too old and cannot accept the different transmission mode?

It is on the list of equipment that doesn't handle the Split NIT properly. This change was made towards the end of 2008 but if you haven't retuned it since then, you wouldn't have noticed the problem before. Reports are that it puts the BBC channels up in the 800s.

I believe software updates were broadcast to fix the problem, but Grundig no longer trade in the UK. Grundig sold their set-top box business to Thomson in 2003. The Thomson DTi1000 is pretty much the same box I believe, but I can't find manual update instructions. You could try phoning Thomson on 01788 541 970.

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